Water-regulating valve for condensers



(No Model.) W. P. GARRISONz WATER REGULATING VALVE FOR GONDENSERS.

Patented May 1, 1 894.

Wwases w u UNITED STATES PATENT OFFICE.

WILLIAM F. GARRISON,-OF BROOKLYN, NEW YORK.

WATER-REGULATING VALVE FOR CONDENSERS.

SPECIFICATION forming part of Letters Patent No. 519,083, dated May 1,1894. Application filed February 11, 1893- Serial No. 461,932. (Nomodel.)

To all whom it may concern.-

Be it known that I, WILLIAM F. GARRISON, of the city of Brooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Water-Regulating Valves for Condensers, of which thefollowing is a specification.

This invention relates to condensers in which the condensation isefiected by the direct contact of the cold water with the vapors to becondensed by it and from which the said water and the products ofcondensation are drawn by an air pump.

The object of the improvement is to provide for the automatic regulationof the supply of the cold water to the condenser in quantity requiredaccording to the vacuum desired to be produced in the apparatus to whichthe condenser is applied.

The nature of the invention will be understood from the description withreference to the accompanying drawings and the claims which follow.

Figures 1 and 2 represent vertical sections of condensers to which myinvention is applied illustrating different examples of the invention.Fig.3 is a plan view corresponding with Fig.

A (Figs. 1, 2 and 3) is the body or chamber of a condenser to which theinlet for the vapors to be condensed is at a, and from which the outletfor the condensing water and products of condensation is at b whereconnection is made with the air pump.

B (Figs. 1 and 2) is an elbow pipe entering the chamber A at one sideand intended to have connected with it at c the pipe for supplying thecondensing water. At the upper and inner end of this elbow pipe is adistributer O D which constitutes the principal feature of my inventionand which I will now proceed to describe.

C is a hollow head piece attached in any suitable manner, as byscrewing, to the elbow B and represented as having its upper edge spreador flanged outwardly with a slight downward slope as shown at din Figs.1 and 2, to constitute a downwardly and outwardly inclined seat for acap D tobe presently described. In the center of this head piece somedistance below its upper edge is a bridge e in the crown of which issecured a fixed central stem or post e. In and around this bridge belowthe base of the stem or post .e',

there are lateral openings 9 g for the flow of The cap D water throughthe distributer. has the form of an inverted cup with a central hub fwhich is bored to fit and move up up and down freely-on the stem or poste. In the example shown in Figs. 2 and 8, this cap is perforated allover like a rose sprinkler so that water introduced through the head 0into the chamber formed within the said cap wherein it collects inconsiderable volume, may be distributed through the perforations of thesaid cap in numerous small jets among the vapors received in thecondenser. When the edge of the perforated cap D is slightly raisedabove the seat d, water escapes also from the chamber within the capthrough the annular opening between the edge of the said cap and thesaid seat whence it assumes the form of a thin dome-shaped film which isalso distributed among the vapors.

In the example shown in Fig. 1, the cap is imperforate and water canescape from the chamber within it only through the annular openingbetween the seat (1 and the cap. The head 0 is to be loaded by a springor weight which will exert a constant tendency to close the said annularopening.

In the example Fig. 1 a spring h is employed for loading or depressingthe cap D. This spring, which is shown coiled around the hub f, iscompressed to a regulated tension by meansof a nut 'i and a collar orwasher j, applied tothe screw-threaded upper portion of the stem e. Thetension of this spring may be adjusted by hand when necessary on theremoval of a bonnet 70 from an opening provided in the chamber A.

In the example Figs. 2 and 3 a weight Z is employed to load or depressthe said cap, the saiiweight being adjustable on a slotted lever m thefulcrum of which is a shaft 72 which passes through a stuffing-box p inone side of the chamber and the inner end of which is supported on abearing in the opposite side of the chamber. This shaft n carries a forkg which embraces a grooved collar ron the hub f of the cap. By shiftingthe weightl on the lever m the pressure on the cap D may be regulatedfrom outside the condenser. The spring or weight is so adjusted that thedown the condenser.

ward pressure produced by it on the cap D is just sufficient to balancethe upward pressure thereon due tothe degree of vacuum desired to beproduced in the condenser. In case the 5 vacuum in the condenser shouldtend to be have its working capacity reduced and the vacuum in thecondenser would be at once correspondingly reduced; or in case thevacuum in the condenser should tend to become too low the cap would bedepressed and the supply of water would be diminished with the effect ofincreasing the working capacity of the air pump and increasing thevacuum in In this way the vacuum may be kept substantially uniform.-Whenever 2o necessary to adjust the pressure of the spring h (Fig. l)on the cap D, it will be necessary to remove the bonnet 7.0 when the nut'i may be reached by hand, but the adjustment of the pressure on the capin the example Fig.

3 may be effected by shifting the weight Zon the lever m without openingthe condenser.

What I claim as my invention is 1. The combination of the hollow headpiece 0 having a downwardly flaring external flange constituting a seatand having within it below said seat a bridge in which is a stationarycentral stem or post and in which below the base of said stem or postthere are lateral openings, a cap of the form of an inverted cup fittedto said post and forming a water chamber above said seat, and a springor weight applied to said cap, substantially as herein set forth.

2. The combination of the hollow head piece 0 having a downwardlyflaring external flange constituting a seat and having within it belowsaid seat a bridge in which is astationary central stem or post and inwhich below the base of said stem or post there are lateral openings,aperforated cap fittedto said post and a spring or weight applied to saidcap, substantially as herein set forth.

WILLIAM F. GARRISON.

\Vitnesses:

FREDK. HAYNES, F. I-IowAnD TITLAR.

